Seppelt releases a 100 year old tawny port every year from its cellar in Seppeltsfield (Barossa). The 750ml bottle costs $1050 and the 375ml $525. The company started laying down these wines every year from the 1870's. It's a fortified shiraz, kept in a single large oak barrel for each year. Approx. 40% of the wine is lost to evaporation over the 100 year maturation. I got a chance to smell (not taste though) the wine from the 1884 barrel - some was kept back by the winery. Colour was dark brown to black, with an olive green meniscus (a typical colour profile for these very old tawny ports) The viscosity was somewhere between olive oil and treacle. The nose was quite amazing, with coffee, cocoa, bitumen, burnt toffee and a whiff of volatile acidity.

Interesting, thanks.